Planar diaphragm loudspeaker

Details Planar diaphragm loudspeaker Planar diaphragm loudspeaker

1996-03-01

1997-12-02

Dang, Khanh

Acoustics

Diaphragm

Particular shape

181174, 381203, G10K 1300

Patent

active

056939175

ABSTRACT:
A planar diaphragm loudspeaker incorporating a planar diaphragm having multiple sound producing regions, a support frame, and one or more electromagnetic drivers coupled to the sound producing regions on the rear surface of the diaphragm. A first sound producing region is formed generally centrally on the rear surface of the diaphragm, and second and third sound producing regions are formed on opposite sides thereof. The sound producing regions comprise raised portions on the rear surface of the diaphragm which are symmetrical about both first and second orthogonal axes for balance. Cross members extend between opposite sides of the support frame so as to overlay all of the sound producing regions to selectively mount separate electromagnetic drivers for coupling to each sound producing region, as well as to mount one or more anchors extending from the cross members to the perimeters of the second and third sound producing regions in order to isolate them from the first sound producing region. The support frame is constructed from hollow rectangular channel frame members which are joined together by L-shaped corner connectors.

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patent: 4997058 (1991-03-01), Bertagni
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patent: 5283836 (1994-02-01), Trufitt
patent: 5425107 (1995-06-01), Bertagni

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